A transceiver design method, collection node and sensing node
A technology of sensing nodes and design methods, applied in the field of analog air, can solve the problems of high latency of transceivers, and achieve the effect of reducing latency
Active Publication Date: 2020-05-22
UNIV OF SCI & TECH OF CHINA
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[0005] During the research of the prior art, the inventor found that the wireless sensor nodes send pilot signals sequentially, so that the sink node collects the CSI of a single sensor node one by one, which will lead to a high delay in transceiver design
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[0055] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0056] Before introducing the embodiments of the present invention, introduce the network deployment structure diagram of transceiver design, such as figure 1 shown, including:
[0057]Multiple sensing nodes 110 and aggregation nodes 120;
[0058] The sensing node 110 includes an equation pre-processing unit 1101, a transmitter pre-processing unit 1102 and a transmitting antenna 1103;
[0059] The aggregation node 120 includes a receiving anten...
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The invention discloses a transceiver design method, a sink node and a sensing node. The method comprises the following steps: determining channel state information from each sensing node to the sinknode; broadcasting a receiver preprocessing vector so that each sensing node determines a transmitter vector according to the corresponding channel state information and the receiver preprocessing vector; determining first effective channel state information, the first effective channel state information being determined based on a first pilot signal simultaneously transmitted by each sensing node; determining second effective channel state information, wherein the second effective channel state information is determined according to a second pilot signal simultaneously transmitted by each sensing node, and the second pilot signal is determined according to the channel state information and the transmitter vector; A target receive vector is determined base on that first effective channel state information and the second effective channel state information. Compared with the signaling flow in which each sensor node sequentially sends pilot signals in the prior art, the scheme of the invention greatly reduces the time delay of the transceiver design.
Description
technical field [0001] The invention relates to the technical field of simulated air, in particular to a transceiver design method, a convergence node and a sensing node. Background technique [0002] Analog Function Computation is a data transmission method used in wireless sensor networks. In a wireless sensor network, the ultimate goal of all sensors transmitting data is to achieve a specific function (such as summation, average, maximum and minimum) rather than caring about the data in the transmission process, so instead of each sensor's Instead of collecting data one by one, it is better to use special means to directly collect the results we are most interested in. Therefore, analog over-the-air computing came into being. [0003] In actual wireless network transmission, MAC (Multiple Access Channel, Multiple Access Channel) has different fading for signals collected from different paths, which makes the signals have different degrees of distortion at the receiving ...
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IPC IPC(8): H04L25/03H04W4/38
CPCH04L25/03292H04L25/03343H04W4/38
Inventor 昂凡尹红征陈力陈晓辉王卫东
Owner UNIV OF SCI & TECH OF CHINA